/****************************************************************************
 Copyright (c) 2019-2022 Xiamen Yaji Software Co., Ltd.

 http://www.cocos.com

 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated engine source code (the "Software"), a limited,
 worldwide, royalty-free, non-assignable, revocable and non-exclusive license
 to use Cocos Creator solely to develop games on your target platforms. You shall
 not use Cocos Creator software for developing other software or tools that's
 used for developing games. You are not granted to publish, distribute,
 sublicense, and/or sell copies of Cocos Creator.

 The software or tools in this License Agreement are licensed, not sold.
 Xiamen Yaji Software Co., Ltd. reserves all rights not expressly granted to you.

 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 THE SOFTWARE.
****************************************************************************/

#pragma once

#include "GLES2Std.h"
#include "gfx-base/GFXDevice.h"
#include "gfx-base/GFXSwapchain.h"
#include "gfx-gles-common/GLESCommandPool.h"

namespace cc {
namespace gfx {

class GLES2GPUContext;
struct GLES2GPUSwapchain;
class GLES2GPUStateCache;
class GLES2GPUBlitManager;
class GLES2GPUFramebufferHub;
struct GLES2GPUConstantRegistry;
class GLES2GPUFramebufferCacheMap;

class CC_GLES2_API GLES2Device final : public Device {
public:
    static GLES2Device *getInstance();

    ~GLES2Device() override;

    using Device::copyBuffersToTexture;
    using Device::createBuffer;
    using Device::createCommandBuffer;
    using Device::createDescriptorSet;
    using Device::createDescriptorSetLayout;
    using Device::createFramebuffer;
    using Device::createGeneralBarrier;
    using Device::createInputAssembler;
    using Device::createPipelineLayout;
    using Device::createPipelineState;
    using Device::createQueryPool;
    using Device::createQueue;
    using Device::createRenderPass;
    using Device::createSampler;
    using Device::createShader;
    using Device::createTexture;
    using Device::createTextureBarrier;

    void acquire(Swapchain *const *swapchains, uint32_t count) override;
    void present() override;

    inline const GLESBindingMapping &bindingMappings() const { return _bindingMappings; }

    inline GLES2GPUContext *            context() const { return _gpuContext; }
    inline GLES2GPUStateCache *         stateCache() const { return _gpuStateCache; }
    inline GLES2GPUBlitManager *        blitManager() const { return _gpuBlitManager; }
    inline GLES2GPUFramebufferHub *     framebufferHub() const { return _gpuFramebufferHub; }
    inline GLES2GPUConstantRegistry *   constantRegistry() const { return _gpuConstantRegistry; }
    inline GLES2GPUFramebufferCacheMap *framebufferCacheMap() const { return _gpuFramebufferCacheMap; }

    inline bool checkExtension(const ccstd::string &extension) const {
        return std::any_of(_extensions.begin(), _extensions.end(), [&extension](auto &ext) {
            return ext.find(extension) != ccstd::string::npos;
        });
    }

    // check the specified format is texture-exclusive (no renderbuffers allowed)
    inline bool isTextureExclusive(const Format &format) { return _textureExclusive[static_cast<size_t>(format)]; };

protected:
    static GLES2Device *instance;

    friend class DeviceManager;

    GLES2Device();

    bool                 doInit(const DeviceInfo &info) override;
    void                 doDestroy() override;
    CommandBuffer *      createCommandBuffer(const CommandBufferInfo &info, bool hasAgent) override;
    Queue *              createQueue() override;
    QueryPool *          createQueryPool() override;
    Swapchain *          createSwapchain() override;
    Buffer *             createBuffer() override;
    Texture *            createTexture() override;
    Shader *             createShader() override;
    InputAssembler *     createInputAssembler() override;
    RenderPass *         createRenderPass() override;
    Framebuffer *        createFramebuffer() override;
    DescriptorSet *      createDescriptorSet() override;
    DescriptorSetLayout *createDescriptorSetLayout() override;
    PipelineLayout *     createPipelineLayout() override;
    PipelineState *      createPipelineState() override;

    Sampler *createSampler(const SamplerInfo &info) override;

    void copyBuffersToTexture(const uint8_t *const *buffers, Texture *dst, const BufferTextureCopy *regions, uint32_t count) override;
    void copyTextureToBuffers(Texture *src, uint8_t *const *buffers, const BufferTextureCopy *region, uint32_t count) override;
    void getQueryPoolResults(QueryPool *queryPool) override {}

    void bindContext(bool bound) override;

    void initFormatFeature();

    GLES2GPUContext *            _gpuContext{nullptr};
    GLES2GPUStateCache *         _gpuStateCache{nullptr};
    GLES2GPUBlitManager *        _gpuBlitManager{nullptr};
    GLES2GPUFramebufferHub *     _gpuFramebufferHub{nullptr};
    GLES2GPUConstantRegistry *   _gpuConstantRegistry{nullptr};
    GLES2GPUFramebufferCacheMap *_gpuFramebufferCacheMap{nullptr};

    ccstd::vector<GLES2GPUSwapchain *> _swapchains;

    ccstd::array<bool, static_cast<size_t>(Format::COUNT)> _textureExclusive;

    GLESBindingMapping _bindingMappings;

    ccstd::vector<ccstd::string> _extensions;
};

} // namespace gfx
} // namespace cc
